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Advanced oxidation system of ultraviolet/ozone coupling catalyst and sewage treatment process

An oxidation system and sewage treatment technology, applied in the directions of oxidized water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc. The configuration method is simple, and the effect of long-term operation is satisfied.

Pending Publication Date: 2021-01-01
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The study found that UV / O 3 In the advanced oxidation system, ozone is excited by ultraviolet light to generate hydroxyl radicals and oxygen, and the oxygen overflows with the tail gas. In the photocatalytic reaction system, oxygen is the basis for the generation of active substances. In the advanced oxidation process of ultraviolet ozone coupling catalyst, the oxygen is regenerated Utilization, capturing electrons to generate active free radicals, can fundamentally solve the problem of low ozone utilization rate in the advanced ozone oxidation process, break the technical bottleneck of high operating cost of advanced oxidation technology, and also increase the yield of active substances, thereby increasing the reaction rate

Method used

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  • Advanced oxidation system of ultraviolet/ozone coupling catalyst and sewage treatment process
  • Advanced oxidation system of ultraviolet/ozone coupling catalyst and sewage treatment process
  • Advanced oxidation system of ultraviolet/ozone coupling catalyst and sewage treatment process

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Embodiment 1

[0055] In this embodiment, an advanced oxidation system with UV / ozone coupling catalysis is provided, and the structure of the advanced oxidation system is as attached figure 1 As shown, the advanced oxidation system includes an ozone generation system and an oxidation system.

[0056] as attached figure 1 As shown, the ozone generating system includes an oxygen cylinder 1, a dryer 2, an ozone generator 3, a gas flow meter 4, and an ozone concentration detector 5, and the above devices are arranged in sequence. The oxygen in the oxygen cylinder 1 is dried by the dryer 2 and enters the ozone generator 3, and the ozone generator 3 prepares the dried oxygen into ozone based on the principle of high-voltage discharge.

[0057] The oxidation system includes a water storage tank 6 , a peristaltic pump 7 , an ozone distribution device 13 , a reactor 8 , a gas-liquid separation device 15 and an ozone destroyer 14 .

[0058] The reactor 8 is a cylindrical structure with both ends clo...

Embodiment 2

[0066] In this embodiment, another UV / ozone coupled catalytic advanced oxidation system is provided. The difference from Embodiment 1 is that the reactor 8 is a box structure, and there is an ultraviolet lamp at the center line of the box. The outside of the tube 11 and the lamp tube are sequentially set with a quartz sleeve 12 and a catalytic bed 10 . In addition, the material of the reactor 8 is carbon steel.

Embodiment 3

[0068] In this embodiment, another ultraviolet / ozone coupled catalysis advanced oxidation system is provided, which is different from that in Embodiment 1 in that the ozone distribution device 13 is a microporous aeration device or a jet aeration device.

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Abstract

The invention provides an advanced oxidation system of an ultraviolet / ozone coupling catalyst and a sewage treatment process. The invention provides the advanced oxidation system of the ultraviolet / ozone coupling catalyst, which comprises an ozone generation system and an oxidation system, the ozone generation system is used for providing an ozone source for oxidation reaction, the oxidation system mainly depends on a reactor to degrade organic matters in sewage, ozone is irradiated by ultraviolet light to generate a cracking reaction. Hydroxyl radicals with a strong oxidizing property are produced. An ultraviolet / ozone reaction system and a fixed catalytic bed generate a synergistic effect, and oxygen generated by ozone in the coupling process can be captured again by photo-induced electrons and reduced into superoxide free radicals, so that ozone is fully utilized, and efficient degradation of organic matters is realized. The advanced oxidation device of the ultraviolet / ozone coupling catalyst provided by the invention realizes the purposes of increasing the degradation rate of organic matters in a reaction system, increasing the utilization rate of ozone, reducing the operationcost and the like.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to an advanced oxidation system of an ultraviolet / ozone coupling catalyst, a sewage treatment process based on the advanced oxidation system and its application in the field of sewage treatment. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Water is the most precious natural resource for human beings. With the rapid development of social economy, the quantity and types of organic matter entering water have also increased sharply, resulting in serious pollution of water bodies, especially those organic sewage with strong toxicity and refractory degradation. It is diffi...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F101/30
CPCC02F1/325C02F1/78C02F1/725C02F2101/30
Inventor 谭伟强朱彤杨世鹏
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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